The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1993
Filed:
May. 02, 1991
Arthur L Cummings, Ponca City, OK (US);
Conoco Inc., Ponca City, OK (US);
Abstract
(a) An alkanolamine solution containing anions, a conductance probe connected through a meter to a recorder and a stirrer are provided in a container, (b) the solution is stirred at a constant rate and metering and recording of the conductance of the alkanolamine solution are initiated, (c) an anion exchange resin in the OH.sup.- form is then introduced to the container in an amount in excess of that required to exchange all anions from the amine solution, (d) the conductance of the alkanolamine solution is monitored until steady state is reached, and (e) the total anion content and the sodium content (if present) are determined from the conductance trace. The process and apparatus may be used to display conductance changes with time and rate of conductance changes with time in order to determine which anions are present in the alkanolamine solution, whether or not sodium is present and the magnitude of conductance values at various time intervals.